/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Returns whether a curve's value is set. If the curve value is not set, returns false.
Returns true if the value is set, false otherwise.
bool IsCurveValueSet ( [FRigCurveElement](API\Plugins\ControlRig\Rigs\FRigCurveElement) * InCurveElement ) const